====================================== | [ 17.181646][ T287] softirqs last disabled at (71231): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 17.181649][ T287] Preemption disabled at: | [ 17.181649][ T287] 0x0 | [ 17.181659][ T287] Tainted: [W]=WARN [ 17.181660][ T287] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.181662][ T287] Call Trace: [ 17.181663][ T287] [ 17.181665][ T287] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 17.181670][ T287] __might_resched.cold (kernel/sched/core.c:9234) [ 17.181674][ T287] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 17.181678][ T287] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 17.181683][ T287] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 17.181685][ T287] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 17.181691][ T287] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 17.181694][ T287] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 17.181697][ T287] put_chars (drivers/char/virtio_console.c:1176) [ 17.181700][ T287] ? __send_to_port (drivers/char/virtio_console.c:654) [ 17.181706][ T287] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 17.181712][ T287] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 17.181715][ T287] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 17.181719][ T287] console_emit_next_record (kernel/printk/printk.c:3183) [ 17.181723][ T287] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 17.181724][ T287] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 17.181726][ T287] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.181730][ T287] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 17.181734][ T287] console_flush_one_record (kernel/printk/printk.c:3268) [ 17.181737][ T287] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 17.181738][ T287] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.181744][ T287] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 17.181746][ T287] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 17.181747][ T287] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.181749][ T287] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 17.181752][ T287] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 17.181754][ T287] ? vprintk_emit (kernel/printk/printk.c:2478) [ 17.181757][ T287] vprintk_emit (kernel/printk/printk.c:2479) [ 17.181760][ T287] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 17.181763][ T287] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.181766][ T287] _printk (kernel/printk/printk.c:2504) [ 17.181770][ T287] ? snapshot_read.cold (user.c:?) [ 17.181772][ T287] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 17.181775][ T287] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 17.181779][ T287] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 17.181782][ T287] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 17.181786][ T287] ? exit_notify (kernel/exit.c:780) [ 17.181787][ T287] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 17.181790][ T287] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.181794][ T287] do_group_exit (kernel/exit.c:1151) [ 17.181797][ T287] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 17.181798][ T287] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 17.181801][ T287] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 17.181805][ T287] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 17.181808][ T287] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 17.181810][ T287] RIP: 0033:0x7f401f96e1b8 [ 17.181813][ T287] Code: Unable to access opcode bytes at 0x7f401f96e18e. Code starting with the faulting instruction =========================================== [ 17.181814][ T287] RSP: 002b:00007ffc5596ab98 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 17.181816][ T287] RAX: ffffffffffffffda RBX: 00007f401fa9ef88 RCX: 00007f401f96e1b8 [ 17.181817][ T287] RDX: 00007f401f76fa48 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 17.181818][ T287] RBP: 00007ffc5596abf0 R08: 0000000000000000 R09: 0000000000000130 [ 17.181819][ T287] R10: 00007ffc5596a9b0 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print